Two-time world champion Fernando Gaviria of Columbia is the odds on favorite to win omnium. Italy’s Elia Viviani was asked of his rivals in Rio and he may have put it best. “I’d put Gaviria ahead of everybody.” Viviani is looking to get on the podium himself as will Great Britain’s Mark Cavendish Lasse Norman Hansen of Denmark won the gold in London and will be looking to defend his medal. Aussie Glenn O’Shea won the 2014 UCI Track World Championships and should not be overlooked.

Women's odds:

Laura Trott (GBR) - 4/5

Sarah Hammer (USA) - 39/10

Annette Edmondson (AUS) - 6/1

Laurie Berthon (FRA) - 9/1

Kirsten Wild (NED) - 13/1

Jolien D'Hoore (BEL) - 16/1

Allison Beveridge (CAN) - 20/1

Malgorzata Wojtyra (POL) - 28/1

Lauren Ellis (NZL) - 33/1

Tatsiana Sharakova (BLR) - 50/1

Xiao Ling Luo (CHN) - 100/1

Amalie Dideriksen (DEN) - 80/1

Marlies Meija Garcia (CUB) - 100/1

Anna Knauer (GER) - 125/1

Mei YU Hsiao (TPE) - 150/1

Xiao Juan Diao (HKG) - 150/1

Sakura Tsukagoshi (JPN) - 150/1

Angie Gonzalez (VEN) - 150/1

Odds as of Aug. 9 courtesy betting website Bovada.lv.

Great Britain’s Laura Trott won the gold medal in 2012 and is the reigning world champion. She is at nearly even odds to win, but her long-time rival American Sarah Hammer, who got silver behind Trott in London, is looking for gold. Australian Annette Edmondson took home the omnium bronze in 2012, but finished an underwhelming fifth in the world championships.